Background/objectives: A large number of labourers work in the stone-crushing industry in India. Many of these workers are also exposed to high levels of particulate matter in their homes from the use of biomass fuels. As part of our investigations to examine the health of these workers we characterised their exposure to respirable crystalline silica and a number of other particulate matter ...
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What are the raw materials used in . 18 · That is a mixture of different kinds of clays and sometimes silica, sand, grog or feldspar.
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Occupational exposure to silica occurs at workplaces in factories like quartz crushing facilities (silica flour milling), agate, ceramic, slate pencil, glass, stone quarries and mines, etc., Non-occupational exposure to silica dust can be from industrial sources in the vicinity of the industry as well as non-industrial sources.
Occupational exposure in stone crushing units to silica particles of size 0.5 to 5µm poses a hazard to the workers. Methods: Our study is a passive surveillance study of silicosis in the symptomatic workers referred from Occupational Disease
Anyone who works with cement or concrete should be aware of the potential health hazards and take precautions to avoid serious health risks. Airborne dust from mixing, cutting, and grinding concrete contains crystalline silica and poses a variety of threats.
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Crystalline silica is a common mineral found in the earth's crust. Materials like sand, stone, concrete, and mortar contain crystalline silica. It is also used to make products such as glass, pottery, ceramics, bricks, and artificial stone.
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AbstractRespirable crystalline silica dust generated during stone crushing operations has been linked to chronic lung disease and increased risk of tuberculosis. In India, most stone crushing mills operate without any dust control or containment systems.
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This limit can be exceeded in just ten minutes of "dry" work on silica-containing granite/stone products. Employers with workers exposed to silica dust above the legal limit must reduce exposure through a variety of control options.
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A s part of their safety and compliance efforts, many aggregate processors are working to reduce employee exposure to hazardous crystalline silica dust. As part of a larger silica exposure mitigation strategy, one control measure available is local exhaust ventilation, or dust collection.
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